Aviation gasoline sales are a good proxy for the health of General Aviation, excluding corporate jets. This segment of the aviation market includes flight trainig, recreational flying and personal travel. The FAA has recently begun efforts to reduce the incredible regulatory burden on General Aviation, but it may be too little, too late as fuel prices have continued to climb as more suppliers have exited the market.
library(plotly)
data <- read.csv("AvGasDeliveries.csv", stringsAsFactors = FALSE)
monthly_cpi <- read.csv("CPIAUCSL.csv", header = TRUE)
monthly_cpi$DATE <- as.Date(monthly_cpi$DATE,"%Y-%m-%d")
data$Date <- as.Date(paste("01-",data$Date, sep = ""), format="%d-%b-%Y")
data <- merge(data, monthly_cpi, by.x = "Date", by.y = "DATE") #merge CPI
data$Deliveries <- data$Deliveries/1000
data$adjPrice <- data$Price * data$CPIAUCSL / data$CPIAUCSL[372]
p <- plot_ly(data, x = data$Date) %>% add_trace(y=data$Deliveries, name = "Deliveries 1000 x US Gal", mode="lines") %>% add_trace(y=data$adjPrice, name = "Price 2013 $/gal", mode="lines")
pAviation fuel prices are from the US Energy Information Association at prices and deliveries. Trend ends in 2013, as the number of fuel suppliers droped so low that the EIA stopped reporting data to protect sensitive corporate data. Data was combined manually in excel, as the downloaded format is poorly in .xls. Consumer Price Index from the St Louis Federal Reserve Board